My efforts to have comments working on blogs other than this one have been completely frustrated.
My suspicion is that the JavaScript that deals with comment registration and brings up the registration form is confused by the other blogs being under a different domain. It is all right to reach the Movable Type code by absolute URIs of the different nfoCentrale anchor-site. That is apparently not good enough for comment handling.
Plan B involves having each nfoCentrale-anchored add-on domain have its own cgi-bin/mt/ directory, and even mt-static/ directory, for the blogs that are operated under that anchored domain.
Plan B involves magical directory-linking, not by actually duplicating the installation (that being the much-despised Plan C).
The first problem is to learn how this is done in Linux, and to then see if I can actually do it with the privileges I have for manipulating the web-hosting account as the owner of the account.
So, first to hit the books and do some practice in SSH. Then we'll see if I can make any improvement this way.
[2010-05-30T01:30Z Well, I broke it. I changed mt-config.cgi back and I think my mistake was I left the StaticFilePath for finding mt-static. I'm hoping that was the mistake.
There don't seem to be any consequences of the change on the blogs, but I can't get the administrative dashboard to come up in an useful way. It looks like an unstyled web page, sort of how Spanner Wingnut started out.
I will do a bit more forensic work and make another stab at correcting the mt-config.cgi file.
I thought I had lost it all for a time. The Movable Type dashboard would not come up, except as a raw HTML page without any of the good parts and formatting. There were a few error messages that indicated my mt-config.cgi changes weren't working.
I have solved that now. Commenting is working on Spanner Wingnut and it is still working here.